Harpies

The Harpies are a pair of Angeloids introduced as "Ambush Angeloids, Type Gamma" (要撃用エンジェロイドタイプγ). They are responsible for tearing off Nymph 's wings and are also guards at the main entrance of Synapse. Their main weapon is a large cannon on their left arms called Prometheus (プロメテウス Purometeusu), which fires white-hot projectiles of 3000 degrees Celsius at 4 km/s. They are named and based on the harpies of Greek mythology.